Table 1.
Plate layout used at Laboratories A, B1, and B2.
Table 2.
Plate layout used at Laboratories C and D.
Table 3.
Plate layout used at Laboratory E.
Table 4.
Statistical outliers identified during analysis of intra-laboratory data.
Table 5.
Summary of variance components obtained from mixed ANOVA model fit to data from all laboratories (results shown by laboratory).
Table 6.
Consensus values by test sample generated from intercept of mixed ANOVA model fit to data from all laboratories.
Fig 1.
Graph of ratio of laboratory mean concentration to consensus value with 90% confidence intervals for each test sample by laboratory.
Dotted lines show equivalence region (0.80 to 1.25) and perfect agreement with consensus value (1.00). All means and confidence bounds are entirely within equivalence region for Laboratories A, B2, C, and E.
Table 7.
Ratio of laboratory mean concentration to overall consensus value with 90% confidence intervals for each test sample.
Table 8.
Estimated slope and lower and upper 90% confidence interval bounds by laboratory from random coefficients regression model fit to all data.